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76 lines
1.6 KiB
ObjectPascal
76 lines
1.6 KiB
ObjectPascal
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by Florian Klaempfl
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member of the Free Pascal development team
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Keyboard unit for MS-DOS
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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unit Keyboard;
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interface
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{$i keybrdh.inc}
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implementation
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uses
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dos;
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{$i keyboard.inc}
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function SysGetKeyEvent: TKeyEvent;
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var
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regs : registers;
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begin
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regs.ah:=$10;
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intr($16,regs);
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if (regs.al=$e0) and (regs.ah<>0) then
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regs.al:=0;
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SysGetKeyEvent:=(kbPhys shl 24) or regs.ax or ((mem[$40:$17] and $f) shl 16);
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end;
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function SysPollKeyEvent: TKeyEvent;
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var
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regs : registers;
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begin
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regs.ah:=$11;
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intr($16,regs);
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if (regs.flags and fzero)<>0 then
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exit(0);
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if (regs.al=$e0) and (regs.ah<>0) then
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regs.al:=0;
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SysPollKeyEvent:=(kbPhys shl 24) or regs.ax or ((mem[$40:$17] and $f) shl 16);
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end;
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function SysGetShiftState: Byte;
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begin
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SysGetShiftState:=(mem[$40:$17] and $f);
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end;
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Const
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SysKeyboardDriver : TKeyboardDriver = (
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InitDriver : Nil;
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DoneDriver : Nil;
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GetKeyevent : @SysGetKeyEvent;
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PollKeyEvent : @SysPollKeyEvent;
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GetShiftState : @SysGetShiftState;
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TranslateKeyEvent : Nil;
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TranslateKeyEventUnicode : Nil;
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);
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begin
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SetKeyBoardDriver(SysKeyBoardDriver);
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end.
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